Work

Mechanical limitation of compression depth in a common CPR training manikin

Year: 2026

Type: article

Abstract: Current CPR guidelines recommend a chest compression depth of 5-6 cm. During an in-hospital training project using a widely adopted manikin (Resusci Anne, Laerdal Medical), integrated distance sensors consistently recorded compression depths below this target range.Further mechanical evaluation showed that a depth of 6 cm is not physically achievable with this model; the maximum displacement did not exceed 5.7 cm, even when measurements included chest components as recommended by the manufacturer. Although limited to a single, widely used manikin, these findings highlight the need to reassess calibration and mechanical design to ensure alignment with guideline-based CPR training and accurate performance feedback.

Source: Advances in Simulation

DOI: 10.1186/s41077-026-00471-6